Someone was asking me about my 9S build tonight after a game so I figured I'd post it up here. This is a very versatile build with the Gauss + ERPPC combo giving you tremendous range. The SRMs give you close in punch, and in extremely close quarters an alpha strike is devastating.
This build is fantastic. All slots used, 2 longrange weapons, 3 close range, AMS, and even a JJ to spare. 5-5
Just got my highest damage round with this mech---1127dmg, 5k, 2a---with a minor adjustment (no artemis, one extra heatsink---only running at 78 tons, lol.) It is amazing how these SRMs, even without artemis, can tear off all those weapons from a Stalker.